Construction of stairways



(No Model.) 2 Sheets8heet 1.

A. N.- PETERSEN.

CONSTRUCTION OF STAIRWAYS.

No. 593,403. Patented Nov. 9, 1897.

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(No Model.) A. N. PETERSEN. 2 Sheets-Sheet 2.

CONSTRUCTION OF STAIRWAYS.

No. 593,403. Patented'Nov. 9, 1897.

WITNESSEMJLA INVEN r05 THE npnms rmns so, wanna. wumuc'r oi, Dlc.

UNITED STATES PATENT OFFICE.

ANDREW N PETERSEN, OF BROOKLYN, NEW YORK.

CONSTRUCTION OF STAIRWAYS.

SPECIFICATION forming part of Letters Patent No. 593,403, dated November 9, 1897.

Application filed July 14, 1897. $eria1 No- 644,519. (No model.)

To all whom it may concern:

Be it known that 1, ANDREW N. PETERSEN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in the Construction of Stairways, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to the construction of stairways, and particularly to stairways which are formed or built around shafts, wells, or similar openings in flats and other buildings or structures, and which consist of aseries of flights which wind around said shaft or opening; and the object of the invention is to provide a stairway of this class with a railing which consists of separate sections, a section of railing being provided for each flight of the stairs, said sections of railing being connected by corner or angle posts of novel construction, whereby the necessity of bending the railing co-correspond with the form of the stairs is avoided; and with these and other other objects in view the invention consists in the construction, combination, and arrangement of parts hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which- Figure 1 is a plan view of a stairway made according to my invention; Fig.2, a perspective view of the inner portion of the shaft or well around which the stairway is formed and showing the form of the corner-posts and the form of the separate sections of the railing; Fig. 8, a section on the line 3 3 of Fig. 1 on an enlarged scale; and Fig 4, a partial plan view of a part of the stairway shown in Fig. 1, part of the construction being shown in section.

In the drawings forming part of this specification the separate parts of my improvement are designated by the same numerals of reference in each of the views, and in said drawings I have shown at 5 the face strings or plates of the stairway and at 6 the wall strings or plates, and the face strings or plates meet each other at an angle, as shown in the drawings, and this angle is usually a right are cut away at the corners and against which the sides of the posts 7 abut,

It will be understood that in the construction of the class of buildings referred to the stairways are usually composed of iron, the separate parts thereof being cast, and the corner posts 7 are also cast, and said posts are also bolted or secured in position in any desired manner, as shown at 9, and each is provided with a triangular lug or projection 10, which rests upon the top portion of the lower face or string plate 5 adjacent thereto, as clearly shown in Figs. 8 and 4:, and said corner-posts are also provided with a plate 11, which is bolted to the framework of the stair.

I have also shown in Fig. 2 an ordinary newelat 17, and I have also shown in Fig. 2 at 18 an ordinary hand-rail, which may be secured to-the newel-post 12 in the usual manner and which extends upwardly and around the stairway directly over the panels 13 and which is bent to conform to or correspond with the upper ends of the corner-posts 7, as is also shown in Fig. 2, and said hand-rail 18 may be socured to the newel-post 12, if desired, and the panels 13 may also be secured thereto.

The form of the panels 13 is immaterial, and said panels may be of any desired ornamentation and may be constructed in any desired manner, the only object in this connection being to provide a railing consisting of separate panels which extend from one of the posts 7 to the other and between the newelposts 12, if the latter be employed, to the first post 7, and said panels may be secured in position in any desired manner, andvby means of this construction, as will be seen, I prevent bending the railing,which has heretofore been practiced, and this in view of the fact that said railing has been made continuous and of cast-iron, being a very difficult job and one which is very expensive.

My improvement also makes the stairway strong and durable, and I avoid the use of square oran gular corner-posts,which are usually unsightly objects in a stairway of this class, and make the corners in which the posts 7 are set all circular in form, the convex surfaces or sides of the posts 7 being directedbackwardly.

Having fully described my invention, I claim as new and desire to secure by Letters Patent 1. A stairway such as is usually built around shafts or wells, said stairway being provided at the corners with corner-posts which are circular in cross-section, and the concave sides of which are directed outwardly,substantially as shown and described.

2. A stairway composed of separate sec tions or parts which are arranged at an angle to each other, and vertical corner-posts which are secured in the angles thus formed, said posts being circular or segmental in cross-section and a railing composed of separate sections which are placed between said posts, substantially as shown and described 3. A stairway composed of separate sections or parts which are arranged at an angle to each other and vertical corner-posts which are secured in the angles thus formed, said posts being circular or segmental in cross-section and a railing composed of separate sections which are placed between said posts, and said stairway being provided with a hand-rail which is secured in position over said panels and said posts, substantially as shown and described.

I testimony that I claim' the foregoing as my invention I have signed my name, in presence of thesubscribing witnesses, this 12th day of July, 1897.

ANDREW N. PETERSEN.

Witnesses:

C. GERsT, A. C. VAN BLARCOM. 

